channell



2 Sheets-Sheet 1.

(No Model.) Y I J. D. GHANNELL. ORE GONOENTRATOR.

No. 347,993. Patented Aug. 24, 1886.

WITNESSES N INSEHITOR: M

ATTORNEYS.

(No Model.) 2 Sheets-Sheet 2. ,J. D. OHANNELL.

ORE CONCENTRATOR'.

Patented Aug. 24, 1886.

INVENTOR WITNESSES fi ATTORNEYS.

N TEn STATES;

PATENT OFFICE.

JOHN D. OHANNELL, OF NEVADA CITY, CALIFORNIA.

ORE-=CONCENTRATO R.

EPECIFICATION forming part of Letters Patent No 347,993, datedAugust 24; 1886.

Application filed November 2, 1885. Serial No. 181,608. (No model.)

To all whom it may concern.-

Be it known that 1, JOHN D. OHANNELL, of Nevada City, in the countyof Nevada and State of California, have invented a new and Improved OreOoncentrator, of which the following is a full, clear, and exact description.

The object of my invention is to provide a new and improved ore-concentrator which is simple in construction and will effectively concentrate the heavy and light particles of the precious metals.

The invention consists in certain construction and combination of parts, as hereinafter fully deseribed,and pointed out in the claims.

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure l is a plan view of my improved concentrator. Fig. 2 is a side elevation of the same, and Fig. 3 is a vertical cross-section of the same on the lines :0 w of Fig. 2.

The frame A, on which my improved oreconcentrator is mounted, is of any suitable construction, and is provided on one side with the main driving-shaft B, which receives its rotary motion by means of a belt passing over the pulley B.

Each end of the shaft 13 is provided with a beveled gear-wheel, O, which meshes into the beveled gear-wheel G, mounted 011 the Vertical shaft 0 which revolves in suitable bearings attached to the main frame A.

To the upper end of each shaft 0 is secured a crank-wheel, 0 having a crank-pin, G", on which is placed one end of the arm 0 the other end being securely bolted to the belt-frame D;

The belt-frame D consists of the side rai1s,D and D which are connected with each other by cross-bars D at suitable intervals.

The belt-frame D is hung on four swinging rods, E, which are pivotally attached at their upper ends to the bent arms E, securely fastened to the sides of the main frame A.

On the front and rear ends of the belt-frame D are mounted in any suitable manner the rolls F and F, over which passes the endless belt G, provided with side flanges, G. per part of this belt G is supported by frictionrollers H, mountedin the top edges of the side rails, D and D", of the belt-frame D,at suitable The up- I intervals. The lower part of the belt G passes under the roll I and through the depositingbox J and over the belt-tightening roll K to the rear roll, F.

The front beltroll, F,is mounted on a shaft, F having its bearings in the belt-frame D, and provided on one end with a toggle-joint, F, which connects with ashort shaft, F*, having its bearing on the main frame A. The short shaft F is provided with a worm-wheel, L, which is driven by the worm L, secured to the upright shaft L, mounted in suitable bearings attached to the main frame A, and provided with a cone-pulley, L "over which passes an endless belt, L", which also runs around the cone-pulley L fastened to the upright shaft 0 Attached to the side rails, D and D and suspended above the belt G, is the pulp-distributer M, provided with cross-bars M, having vertical slots M through which the pulp passes and is evenly distributed onto the belt G. A short distance from the pulp-distributer M, toward the front end of the machine, is placed the water-distributer N,attaehed to the main frame A, and also provided with a crossbar, N, having vertical slots N through which passes the water to the belt G, to assist in washing out the sand from the pulp.

The rear end of the frame A is provided with a box, P, into which passes the sand and water, and is provided with a chute, O,which conveys the water and sand from the machine.

The operation is as follows: The endless belt G is set in motion in the direction of the arrow.

a from the main shaft B by means of the beveled gearwhee1s O and G, imparting motion to the upright shafts 0", one of which transmits its motion, by means of the cone-pulleys by means of the crank-wheels (3 on the tops of the shafts C", and cranlearms Oflattached to the side rail, D, of the belt'frame D. It will thus be seen that'the pulp in the pulp-distributer M is constantly agitated, and that it is also agitated as soon as it passes onto the belt G, thereby very effectually separating the precious ores from the sand and water. The sand and water being carried over the rear roll, 5 F,are deposited in the box P,while the ore adheres to the belt G and is carried to the washbox J, and there washed from the belt and deposited in the said box J.

Having thus described myinvention, I claim a as new and desire to secure by Letters Patent- 1. In an oar-concentrator, the combination, with the belt-frame D, the rolls F F, and the belt G, of the shaft B, the gear-wheels C G,the shafts O, the crank-wheels O, the crank-arms 5 C and means, substantially as described, for imparting motion to one of the said rolls from one of the said shafts C", substantially as herein shown and described.

2. In an ore-concentrator, the endless belt G, J the swinging belt-frame D, the rolls F, F, I, and K, and the belt G, in combination with the toggle-joint F, the shaft F, the wormwheel L, the worm L, the shaft L the conepulleys L and L the belt L,the shafts C the 5 beveled gear-wheels 0 and C, and the shaft B,

substantially as shown and described. 7 3. In an ore-concentrator, the combination, with the suspended belt-frame D, the rolls F F, the belt G, and means for imparting a a shaking motion to the said belt-frame, of the shaft L, the pulleys L L, the worm-wheel L, worm L, shaft F, and a toggle-connection between the said shaft and the shaft of one of the said rolls, substantially as herein shown and described. 7 5

4. In an oreconcentrator, the combination, with the belt-frame D, the rolls F F, and the belt G, of the arms E, the rods E, connected to said arms and to the belt-frame, the shaft B, the shafts C the crank-wheels O, the crankarms 0 and intermediate mechanism for rotating one of the said rolls from one of the shafts G substantially as herein shown and described.

5. In an ore-concentrator, the combination, 5 with the suspended belt-frame D, the rolls F F, and belt G, of the shaft B, the shafts O", gear-wheels O O, crank-wheels O crank-arms C shaft L cone-pulleys L L worm L,shaft F, worm-whee1 L, and a toggle-connection between the shaft F and the shaft of the roll F, substantially as-herein shown and described.

6. In an ore-concentrator, the frame D, the rolls F,F, I, and K, the friction-rollers H, and the belt G, in combination with the main shaft 55 B, the gear-wheels O and G,the shafts C", crankwheels G, pins 0, crank-arms C the conepulleys L and L", the belt L, the shaft L", the worm L, the worm-wheel L, the shaft F, the toggle-joint F, and the shaft F of the roll 60 F, substantially as shown and described.

JOHN D. OHANNELL.

\Vitn esses:

GEORGE G. ALLAN, CHARLES GRIMEs. 

